133122545 has 8 divisors (see below), whose sum is σ = 161329320. Its totient is φ = 105443200.

The previous prime is 133122541. The next prime is 133122571. The reversal of 133122545 is 545221331.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 12737761 + 120384784 = 3569^2 + 10972^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 133122545 - 2² = 133122541 is a prime.

It is a super-2 number, since 2×133122545² = 35443223974554050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (133122541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131300 + ... + 132309.

It is an arithmetic number, because the mean of its divisors is an integer number (20166165).

Almost surely, 2^133122545 is an apocalyptic number.

It is an amenable number.

133122545 is a deficient number, since it is larger than the sum of its proper divisors (28206775).

133122545 is a wasteful number, since it uses less digits than its factorization.

133122545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263715.

The product of its digits is 3600, while the sum is 26.

The square root of 133122545 is about 11537.8743709576. The cubic root of 133122545 is about 510.6035977890.

Adding to 133122545 its reverse (545221331), we get a palindrome (678343876).

The spelling of 133122545 in words is "one hundred thirty-three million, one hundred twenty-two thousand, five hundred forty-five".